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Technical Winters Small Block 1966 Intake Manifold.

Discussion in 'The Hokey Ass Message Board' started by 1Nimrod, Sep 17, 2025 at 12:29 AM.

  1. 1Nimrod
    Joined: Dec 11, 2018
    Posts: 710

    1Nimrod
    Member

    Seen this Cool Chevy Tri-power with Holley Carbs for a Small Block, the intake manifold is by Winters, I can not find any information about it, was this a SHP Intake Manifold for the 327 or 302? casting date is 2-9-65 or 66
    Casting # 3896927 or 3696927 any one have information on this Intake Manifold.

    Dustin
    (1Nimrod) L70intake_01-scaled-e1636106318565.jpg L70intake_05-scaled-e1636108988455.jpg L70intake_04-scaled-e1636109552978.jpg
     
  2. DDDenny
    Joined: Feb 6, 2015
    Posts: 21,922

    DDDenny
    Member
    from oregon

  3. 427 sleeper
    Joined: Mar 8, 2017
    Posts: 3,342

    427 sleeper
    ALLIANCE MEMBER

    It's probably the closest you'll ever come to seeing a Unicorn.
     
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  4. SS327
    Joined: Sep 11, 2017
    Posts: 3,714

    SS327

    Buy it at any cost! Hell, let me know where and I’ll buy it!
     
  5. 1Nimrod
    Joined: Dec 11, 2018
    Posts: 710

    1Nimrod
    Member

    That sure is interesting, what a great looking Winters Tri-power Intake Manifold for the Small Block SHP 1967 350 engine.
    That's what dreams are made of right there.
    It would've been something if GM had introduced the 1967 Camaro with the L70 350 360 SHP engine instead of the 302 360 SHP engine back in 1966.
    Thank You DDDenny Way COOL...

    Dustin
    (1Nimrod)
     
  6. Moriarity
    Joined: Apr 11, 2001
    Posts: 36,603

    Moriarity
    SUPER MODERATOR
    Staff Member

  7. 1Nimrod
    Joined: Dec 11, 2018
    Posts: 710

    1Nimrod
    Member

    Big Bucks $$$$...
    If the price is right then @badshifter may sell that Small Block Chevy L70 Winter's Tri-power 3X2 bbl Holley Carb Intake Manifold, MAYBE ??

    Dustin
    (1Nimrod)
     
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  8. Moriarity
    Joined: Apr 11, 2001
    Posts: 36,603

    Moriarity
    SUPER MODERATOR
    Staff Member

    I am quite certain that it is not for sale.....
     
  9. 1Nimrod
    Joined: Dec 11, 2018
    Posts: 710

    1Nimrod
    Member

    So the 1st & 3rd Holley Carbs have Vacuum Pods is that how they worked? The 2nd (middle) Holley was the main Holley Carb that was used for starting bcuz of the Choke?
    What is the CFM of the Holley 2 bbl carbs on this Tri-power?

    Dustin
    (1Nimrod)
     
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  10. bchctybob
    Joined: Sep 18, 2011
    Posts: 5,826

    bchctybob
    Member

    Too bad the aftermarket didn’t pick up on that and offer a similar manifold. Although it looks counterintuitive, like a set of Rochesters on a small block Ford, it sure fills the top of a small block Chevy with carburetors.
     
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  11. RodStRace
    Joined: Dec 7, 2007
    Posts: 8,069

    RodStRace
    Member

    Yes, the center is the 'primary' the outers are 'secondary'. I come from a Mopar background, but Chevy also did this on the big blocks. Probably lots of info out there on how they work, what the numbers are and such.
    Remember, CFM is calculated differently depending on how many barrels (venturi) are being pulled thru.
    https://www.jalopyjournal.com/forum/threads/2bbl-vs-4-bbl-cfm-flow-ratings.786212/
     
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  12. 1Nimrod
    Joined: Dec 11, 2018
    Posts: 710

    1Nimrod
    Member

    Carbking knows his stuff, he's the only one that has a REAL Complete Holley Carb Kit for my 1966 780 Holley.
    Bcuz the thread is older the first extra thread is not available now, wish there was a way to save the HAMB older information or retrieve the older threads somehow, a lot of excellent Car & Engine & everything else History is being lost one day at a time.
    Thank you for the Holley Carb CFM information.

    Dustin
    (1Nimrod)
     
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  13. carbking
    Joined: Dec 20, 2008
    Posts: 3,932

    carbking
    Member

    I would be very interested to know the list numbers of the carburetors.

    Thanks in advance.

    Jon
     
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  14. DDDenny
    Joined: Feb 6, 2015
    Posts: 21,922

    DDDenny
    Member
    from oregon

    How about this one Bob.
    I think I would come up with a different filter/top setup though.

    upload_2025-9-17_9-41-31.jpeg

    https://www.hotrod.com/how-to/testing-holleys-new-small-block-chevy-tri-power-system
     
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  15. RodStRace
    Joined: Dec 7, 2007
    Posts: 8,069

    RodStRace
    Member

  16. 1Nimrod
    Joined: Dec 11, 2018
    Posts: 710

    1Nimrod
    Member

    This part of the History of the L70 information from DDDenny may have listed the 3 2bbl Holley Carb List Number's but it only shows referral numbers no other information on those part's. Sure would be great to know right.

    Dustin
    (1Nimrod) origin-4924.jpg
     
  17. 1Nimrod
    Joined: Dec 11, 2018
    Posts: 710

    1Nimrod
    Member

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